Griffith,
CIS doesn't, by default, have a visualy destructive backspace, what it
normaly does is just move the cursor back one space. However, the character
that it is moved back over top of, is deleted.
There is a complicated procedure you can go thru to set up a terminal
definition that does a destructive backspace visualy…what it does on receipt
of a backspace is echo back the following sequence:
backspace space backspace
A ^H is the default backspace definition.
Don